Abstract:
The present invention aims to provide a method for efficiently producing hydroxy-L-lysine. The present invention provides a method for producing hydroxy-L-lysine, the method comprising allowing 2-oxoglutarate-dependent L-lysine hydroxylase, a cell containing 2-oxoglutarate-dependent L-lysine hydroxylase, a processed product of the cell, and/or a culture broth obtained by culturing the cell, to act on L-lysine to produce hydroxy-L-lysine represented by the following General Formula (I) (wherein each of R1, R2 and R3 represents a hydrogen atom or hydroxyl group, with the proviso that at least one of R1, R2 and R3 represents a hydroxyl group).
Abstract:
The invention provides a production method of a biaryl compound of the formula [3] or a salt thereof, including reacting a 2-phenylazole derivative of the formula [1] or a salt thereof, with a benzene derivative of the formula [2] or a salt thereof in the presence of a metal catalyst, a base, and one or more of (a) a monocarboxylic acid metal salt, (b) a dicarboxylic acid metal salt, (c) a sulfonic acid metal salt, and (d) a phosphate or phosphoric amide metal salt represented by RAxP(O)(OM)y wherein each symbol is as defined herein.
Abstract:
Salicylic acid is produced with high productivity by reacting 2-halogenated benzoic acid in an aqueous solvent at a reaction temperature of 155° C. or higher and 300° C. or lower in the presence of a copper source and a ligand. Preferably, the method further includes a purification step A in which the obtained salicylic acid is brought into contact with a styrene-based synthetic adsorbent and/or a purification step B in which the obtained salicylic acid is brought into contact with zeolite. The compound is led to raw materials for various pharmaceuticals or intermediates thereof (for example, acetylsalicylic acid).
Abstract:
The present invention provides a method for industrially producing a highly pure aromatic nitrile compound and a highly pure aromatic carboxylic acid compound safely and highly efficiently at low costs. Compound (2) is subjected to Willgerodt reaction in the presence of an additive as necessary, and the obtained amide compound (3) is hydrolyzed and neutralized to give carboxylic acid compound (4). Carboxylic acid compound (4) is reacted with a halogenating agent in the presence of a catalyst as necessary in an organic solvent, and further reacted with an amidating agent, and the obtained amide compound (5) or (6) is reacted with a dehydrating agent to give nitrile compound (1). Alternatively, carboxylic acid compound (4) is reacted with a halogenating agent and a compound represented by the formula R6SO2R7 in the presence of a catalyst as necessary in an organic solvent to give nitrile compound (1). Np is a naphthyl group optionally having substituent(s), R5 is an alkylene group having 1-3 carbon atoms, and other symbols are as described in the DESCRIPTION.
Abstract:
A method for producing a compound represented by the formula (1):
wherein LG is a leaving group, PG1 is an amino-protecting group, and R is a hydrocarbon group having 1-8 carbon atoms and optionally having substituent(s), comprising
reacting a compound represented by the formula (6):
with an amino group protecting agent to obtain a compound represented by the formula (7):
or a salt thereof;
reacting the aforementioned compound represented by the formula (7) with a lactonization agent to obtain a compound represented by the formula (8):
reacting the aforementioned compound represented by the formula (8) with an esterification agent to obtain a compound represented by the formula (9):
and
reacting the aforementioned compound represented by the formula (9) with a leaving group introduction agent.
Abstract:
High purity 2-naphthylacetonitrile with fewer impurities can be used as a starting material or intermediate for synthesizing various pharmaceutical products, agricultural chemicals, and chemical products, and a production method thereof. A high purity 2-naphthylacetonitrile having an HPLC purity of 2-naphthylacetonitrile of not less than 95 area %, and containing naphthalene compounds represented by the formulas (a)-(j) at a content of a predetermined area % or below. A method for producing high purity 2-naphthylacetonitrile, may include: subjecting 2′-acetonaphthone to a Willgerodt reaction in the presence of an additive where necessary, and hydrolyzing the obtained amide compound to give 2-naphthylacetic acid; and reacting the 2-naphthylacetic acid obtained in the subjecting, a halogenating agent and sulfamide in the presence of a catalyst as necessary in an organic solvent to give 2-naphthylacetonitrile.
Abstract:
The present invention provides a novel hydrolase that can industrially produce optically highly pure (1S,2S)-1-alkoxycarbonyl-2-vinylcyclopropane carboxylic acid with high efficiency at low costs, and a production method using the hydrolase.
Abstract:
An object of the present invention is to provide a novel method capable of producing rosuvastatin calcium and intermediates therefor efficiently, inexpensively and with high purity. The present invention provides a method of efficiently producing rosuvastatin calcium and intermediates therefor having a high purity at an industrial scale, without using an extremely low temperature reaction or a special asymmetric catalyst.
Abstract:
Production of pitavastatin calcium safely on an industrial scale with a high yield and high selectivity at low cost. A method of producing pitavastatin calcium including step (i) for acetalizing a compound represented by the formula (1) to give a compound represented by the formula (3), step (ii) for reacting a compound represented by the formula (3) with an acid to give a compound represented by the formula (4), and step (iii) for hydrolyzing a compound represented by the formula (4) and reacting same with a calcium compound.
Abstract:
A method for producing (2S,5S)/(2R,5R)-5-hydroxypiperidine-2-carboxylic acid represented by formula (10) below: the method including removing the protecting group from the hydroxyl group in a compound represented by formula (7) below: (wherein P represents a protecting group, R3 represents an alkyl group containing 1 to 4 carbon atoms, and A represents an alkyl group containing 1 to 10 carbon atoms, an aryl group containing 6 to 12 carbon atoms, an alkyloxy group containing 1 to 4 carbon atoms, or an aralkyloxy group containing 7 to 20 carbon atoms) to synthesize a compound represented by formula (8) below: (wherein R3 represents an alkyl group containing 1 to 4 carbon atoms, and A represents an alkyl group containing 1 to 10 carbon atoms, an aryl group containing 6 to 12 carbon atoms, an alkyloxy group containing 1 to 4 carbon atoms, or an aralkyloxy group containing 7 to 20 carbon atoms).